Why the first two true leaves dying

MustGro

Well-Known Member
Just seen pic of light not sure what those are but I bet 7cm is to close and causing part of your issues
Most of those little LEDs have a clear or opaque cover on them too; mine does. No cover on that one so more light to the plant.
 

Three Berries

Well-Known Member
There is usually four kinds of bottled water. Straight from the tap, straight from the ground (could be spring or well), RO and RO with minerals added. They all get filtered and a ozone injection when filled. The ozone makes the initial water very reactive but this dissipates in a couple of days. The pure RO is something to avoid but if any nuets or other mineral added, negates the reactivity. The mineral they usually add is a bicarbonate, potassium or magnesium. Never sodium..... :)

Worked at a water bottled for a few years.
 

Roger A. Shrubber

Well-Known Member
it needs to dry out a lot...you can let it go for days as it sits now. i'd get a fan blowing towards it, but not directly on it, and move it as close to the light as you can without burning it. if all you've been giving it is bottled water, it's probably already been "flushed" enough.
you want to be able to stick your index finger into the soil up to the second knuckle and the soil should feel DRY...the pot should be very light, but the plant shouldn't be wilting. that's when you water, good enough to get just a little run off, which you want to get the pot out of, on a few stones or a brick or something like that. you don't want it to reabsorb that water, it will be full of depleted mineral salts from the last nutes you fed it
 

yavas

Member
It doesn’t look overwatered to me and if it’s dry 2-3 cm under the surface it isn’t overwatered.
@myke might be right and the soil is a little warm. The first set of leaves burnt at the tips but the new growth didn’t so the plant got bigger and could use the nutes better.
Me, personally, I’m with @Rurumo . That little LED is close. I ran one just like that for cloning and kept it about a foot over the lights. You‘re not even 3 inches above it at 7cm. But the new growth looks good, not burnt, so I think the plant hardened off to the light.
I don’t see your new growth getting too green yet so the soil is probably ok. Not much you can do beside leach the nutes out of it anyway. Were the first set of leaves praying/reaching for the light? That‘d explain the burns on just the leaf tips.
You’re using regular bottled water right? Not mineral or spring.
The red blue light is 18w and I have one I used to my old fishtank plus the plant take direct sunlight from 11 am to 5pm then goes under the light. The first set of leaves praying before 3-4 days but I thought that was a good sign.
 

yavas

Member
it needs to dry out a lot...you can let it go for days as it sits now. i'd get a fan blowing towards it, but not directly on it, and move it as close to the light as you can without burning it. if all you've been giving it is bottled water, it's probably already been "flushed" enough.
you want to be able to stick your index finger into the soil up to the second knuckle and the soil should feel DRY...the pot should be very light, but the plant shouldn't be wilting. that's when you water, good enough to get just a little run off, which you want to get the pot out of, on a few stones or a brick or something like that. you don't want it to reabsorb that water, it will be full of depleted mineral salts from the last nutes you fed it
Well the soil is moist up to second knuckle and down the bottom, I added some more perlite today.
 

yavas

Member
There is usually four kinds of bottled water. Straight from the tap, straight from the ground (could be spring or well), RO and RO with minerals added. They all get filtered and a ozone injection when filled. The ozone makes the initial water very reactive but this dissipates in a couple of days. The pure RO is something to avoid but if any nuets or other mineral added, negates the reactivity. The mineral they usually add is a bicarbonate, potassium or magnesium. Never sodium..... :)

Worked at a water bottled for a few years.
The label says natural mineral water, suitable for a low sodium diet pH 7.6 and some more info
 

Three Berries

Well-Known Member
The label says natural mineral water, suitable for a low sodium diet pH 7.6 and some more info
That sounds like spring water. Or a fancy name for well water. Springs, they usually give you the source name. My well water is around 7.4-7.6. It's filtered though limestone as it soaks down.
 

MustGro

Well-Known Member
The red blue light is 18w and I have one I used to my old fishtank plus the plant take direct sunlight from 11 am to 5pm then goes under the light. The first set of leaves praying before 3-4 days but I thought that was a good sign.
Here’s a pic of my Led that I used for a few clone runs, 9 watts with a cover. I think it’s your light causing the messed up tips. 18 watts of led at 7cm was a lot for her to deal with so early. It’s probably hardened off to it now, that‘s why the new growth isn’t affected.
 

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MustGro

Well-Known Member
That sounds like spring water. Or a fancy name for well water. Springs, they usually give you the source name. My well water is around 7.4-7.6. It's filtered though limestone as it soaks down.
Do you have any idea what ppm/EC would be in his mineral water? I thought using that was a no no.
 

yavas

Member
Here’s a pic of my Led that I used for a few clone runs, 9 watts with a cover. I think it’s your light causing the messed up tips. 18 watts of led at 7cm was a lot for her to deal with so early. It’s probably hardened off to it now, that‘s why the new growth isn’t affected.
She also get the 11am-5pm direct sunlight before lights since sprout
 

MustGro

Well-Known Member
She also get the 11am-5pm direct sunlight before lights since sprout
The direct sunlight shouldn’t be an issue as long as the plant got hardened off to it. Direct sunlight is the best. That‘s probably why she didn’t burn up worse under that led. I personally think you’re good now. The new growth isn’t affected.
 

JonathanT

Well-Known Member
What's your plan there? Are you putting it outdoor? If you aren't, and don't have a much bigger light, throw it away. You can't grow 18 grams of herb with "18 watts"
 

yavas

Member
What's your plan there? Are you putting it outdoor? If you aren't, and don't have a much bigger light, throw it away. You can't grow 18 grams of herb with "18 watts"
I'm putting outdoor when the sun is up, then I continue with 18watt lamp one 120w aquarium and maybe if survive put it under 2700k for flowering. It's my first time, it's more experimental so I don't aim for big harvest..
 
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